Alexandra Caroline "Lexie" Grey, M.D. is a fictional character from the ABC medical drama television series Grey's Anatomy. The character was created by Shonda Rhimes and is portrayed by Chyler Leigh. She was first mentioned in Season 2 before being introduced in Season 3 as the half-sister of protagonist Meredith Grey (Ellen Pompeo). Leigh was initially contracted for a multi-episode story arc but received star-billing from seasons 4 through 8. She also reprised her role on the spin-off series Private Practice. Characterized by Rhimes as a "dork" with issues expressing her feelings, Lexie transfers to the fictional Seattle Grace Hospital as a surgical intern following the sudden death of her mother, Susan Grey (Mare Winningham). She eventually progresses to the position of surgical resident. Her main storylines throughout the series focus on her struggles with the pressures of a highly competitive profession, her initially strained relationship with Meredith, and her on-again, off-again romance with Mark Sloan (Eric Dane), an attending in plastic surgery. The couple sustained fatal injuries during an aviation accident in the Season 8 finale, leading to the renaming of Seattle Grace Mercy West Hospital to Grey-Sloan Memorial Hospital in their memory. Leigh's performance as Lexie Grey received widespread critical acclaim from critics and fans alike. Her death remains one of the most emotional moments in the series' history.
Storylines
Background Alexandra Caroline "Lexie" Grey (born 1984) is the daughter of Susan Grey (Mare Winningham) and Thatcher Grey (Jeff Perry), and the older sister of Molly Grey-Thompson (Mandy Siegfried). Throughout her childhood, Lexie was unaware that she had an older half-sister, Meredith Grey (Ellen Pompeo), who was born to Thatcher and his first wife Ellis Grey (Kate Burton), a world-renowned surgeon. In contrast to Meredith, Lexie grew up in an idealistic and loving home. Meredith once remarked about Lexie: "She was raised right. With parents and rules and smiley face posters on her wall." One of Lexie's fondest memories is of a surprise party her parents threw for her when she turned 7, which she always remembered as one of her best birthdays. Lexie displayed high intelligence from an early age, having skipped third grade and excelled in her psych clerkship. She was also popular during her high school years, where she was crowned prom queen and named class valedictorian. Despite their differences in upbringing, the Grey sisters ultimately form a strong familial bond after Lexie moves into Meredith's house. Lexie possesses an eidetic memory, a trait that often proves invaluable and earns her the nickname "Lexipedia". She demonstrates a strong aptitude for both plastics and neurosurgery, and is considered one of the most talented young surgeons of her cohort, often being asked to assist on many high-profile surgeries.
Season 3
Near the end of Meredith's intern year, Thatcher and Molly mention that Lexie is a student at Harvard Medical School. After she graduates, Lexie is accepted by Massachusetts General Hospital to pursue her residency. However, following her mother's sudden death due to complications from the hiccups, Lexie decides to move back to Seattle to care for her grieving father. She takes up a surgical internship at Seattle Grace Hospital, starting one year behind Meredith, who is about to begin her first year of residency. On the day of her mother's funeral, Lexie waits in the car while Thatcher, accompanied by Molly, tells Meredith that she isn't welcome at the ceremony, causing Lexie to miss the opportunity to meet her older half-sister. Later that night, before her internship at Seattle Grace begins, Lexie meets Derek Shepherd (Patrick Dempsey) at Joe's Bar, in a scene reminiscent of Derek's initial meeting with Meredith. The two share a flirtatious moment, with Lexie boldly offering to buy Derek a drink, though Derek declines, saying he is there with some friends. The next day, upon arriving at the hospital's intern locker room, Lexie meets George O'Malley (T. R. Knight), who is at the end of his first year as an intern. After introducing herself, George immediately realizes that Lexie is Meredith's half-sister.
Season 4
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![Lexie Grey: The relationship between Leigh's character and Eric Dane's Mark Sloan has been lauded by critics and fans of the show.[110]](https://upload.wikimedia.org/wikipedia/commons/2/2f/Eric_Dane_-_White_House_Correspondents%27_Association_Dinner_-_cropped.jpg?utm_source=en.wikipedia.org&utm_campaign=parser&utm_content=thumbnail_unscaled)

